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Primary Antibodies  >  Transcription Factor Antibodies

SMAD2 Antibody

Rabbit Polyclonal


100 µg


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Western blot using Rockland's affinity purified anti-Smad2 to detect over-expressed Smad2 in COS cells (arrow).  Lane C shows mock infection of COS cells with lentiviral vector alone. Lane S2 shows detection of Smad2 in lysates of COS transfected with Smad2.  Lane V contains lysates of MDA-MB231 cells treated with vehicle; the next lane contains lysates of MDA-MB231 cells treated with TGF?.  Low levels of staining in control lanes correspond to detection of endogenous Smad2.  Preincubation of the antibody with immunizing peptide (data not shown) completely blocks specific band staining.  The blot presented is askew relative to the molecular weight markers.  The expected MW for Smad2 is 52 kDa.  The membrane was probed with the primary antibody at a 1:2500 dilution. Personal Communication Kathleen Flanders, CCR-NCI, Bethesda, MD.
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$20.00 to United States
Synonyms: MAD antibody, MAD Related Protein 2 antibody, MGC34440 antibody, Mothers Against Decapentaplegic Homolog 2 antibody

SMAD2 Antibody Properties

Anti-SMAD2 (RABBIT) Antibody - 600-401-A59
Target Species
Known Cross Reactivity
human, mouse, rat
ELISA : 1:100,000
Western Blot : 1:1,000 - 1:3,000
ImmunoPrecipitation: User Optimized
Other Dilution: User Optimized
Physical State
Liquid (sterile filtered)
Shipping condition
Dry Ice
0.55 mg/mL by UV absorbance at 280 nm
0.02 M Potassium Phosphate, 0.15 M Sodium Chloride, pH 7.2
0.01% (w/v) Sodium Azide
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SMAD2 Antibody Description

This antibody is designed, produced, and validated as part of a collaboration between Rockland and the National Cancer Institute (NCI) and is suitable for Cancer, Immunology and Nuclear Signaling research. Smad2 (also known as Mothers against decapentaplegic homolog 2, Mothers against DPP homolog 2, Mad2, hMAD-2 or hSMAD2) is a member of the Smad family of proteins which are similar to the gene products of the Drosophila gene 'mothers against decapentaplegic' (Mad) and the C. elegans gene Sma. SMAD proteins are signal transducers and transcriptional modulators that mediate multiple signaling pathways. This protein mediates the signal of the transforming growth factor (TGF)-beta, and thus regulates multiple cellular processes, such as cell proliferation, apoptosis, and differentiation. This protein is recruited to the TGF-beta receptors through its interaction with the SMAD anchor for receptor activation (SARA) protein. In response to TGF-beta signal, this protein is phosphorylated by the TGF-beta receptors. The phosphorylation induces the dissociation of this protein with SARA and the association with the family member SMAD4. The association with SMAD4 is important for the translocation of this protein into the nucleus, where it binds to target promoters and forms a transcription repressor complex with other cofactors. This protein can also be
This affinity purified antibody was prepared from whole rabbit serum produced by repeated immunizations with a synthetic peptide corresponding to an internal region of human Smad2 protein.
Immunogen Type
Storage Condition
Store vial at -20° C prior to opening. Aliquot contents and freeze at -20° C or below for extended storage. Avoid cycles of freezing and thawing. Centrifuge product if not completely clear after standing at room temperature. This product is stable for several weeks at 4° C as an undiluted liquid. Dilute only prior to immediate use.
Application Note
This affinity purified antibody has been tested for use in ELISA and western blotting.  Specific conditions for reactivity should be optimized by the end user.  Expect a band approximately 52 kDa in size corresponding to Smad2 protein by western blotting in the appropriate cell lysate or extract.
This affinity purified antibody is directed against human Smad2 protein. The product was affinity purified from monospecific antiserum by immunoaffinity chromatography.  A BLAST analysis was used to suggest cross-reactivity with Smad2 protein from human, mouse and rat based on 100% homology with the immunizing sequence.  Reactivity against homologues from other sources is not known.  Also, the antibody is Smad2 specific, and reactivity to other Smad proteins (specifically Smad1, Smad3, Smad4, and Smad7) is not detected in over-expressed cell lysates (Personal Communication, Kathleen Flanders, CCR-NCI, Bethesda, MD).
Disclaimer Note-General
This product is for research use only and is not intended for therapeutic or diagnostic applications. Please contact a technical service representative for more information. All products of animal origin manufactured by Rockland Immunochemicals are derived from starting materials of North American origin. Collection was performed in United States Department of Agriculture (USDA) inspected facilities and all materials have been inspected and certified to be free of disease and suitable for exportation. All properties listed are typical characteristics and are not specifications. All suggestions and data are offered in good faith but without guarantee as conditions and methods of use of our products are beyond our control. All claims must be made within 30 days following the date of delivery. The prospective user must determine the suitability of our materials before adopting them on a commercial scale. Suggested uses of our products are not recommendations to use our products in violation of any patent or as a license under any patent of Rockland Immunochemicals, Inc. If you require a commercial license to use this material and do not have one, then return this material, unopened to: Rockland Inc., P.O. BOX 326, Gilbertsville, Pennsylvania, USA.
General Reference
Yang,A.H., Huang,S.W., Chen,J.Y., Lin,J.K. and Chen,C.Y. Leptin augments myofibroblastic conversion and fibrogenic activity of human peritoneal mesothelial cells: a functional implication for peritoneal fibrosis. Nephrol. Dial. Transplant. 22 (3), 756-762 (2007). Liapis,G., Mylona,E., Alexandrou,P., Giannopoulou,I., Nikolaou,I., Markaki,S., Keramopoulos,A. and Nakopoulou,L. Effect of the different phosphorylated Smad2 protein localizations on the invasive breast carcinoma phenotype. APMIS 115 (2), 104-114 (2007). Bruna,A., Darken,R.S., Rojo,F., Ocana,A., Penuelas,S., Arias,A., Paris,R., Tortosa,A., Mora,J., Baselga,J. and Seoane,J. High TGFbeta-Smad activity confers poor prognosis in glioma patients and promotes cell proliferation depending on the methylation of the PDGF-B gene.  Cancer Cell 11 (2), 147-160 (2007).
Specific Reference
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Product Type
Primary Antibodies;
Reacts With
Catalog Number

Product Type
Primary Antibodies;
Reacts With
human, Xenopus laevis, Xenopus tropicalis, zebrafish, rat, mouse, swine, bovine, chicken
Catalog Number

Product Type
Primary Antibodies;
Reacts With
human, Xenopus laevis, Xenopus tropicalis, zebrafish, rat, mouse, swine, bovine, chicken
Catalog Number

Product Type
Primary Antibodies;
Reacts With
human, mouse, rat
Catalog Number

Product Label


Conjugation Reference
Molecular Weight
Excitation Wavelength
Conjugation Chemistry